Merge, split, compress, convert, edit and organize — all in your browser. Your files never leave your device. No sign-up, no limits, no watermarks.
Large PDF files are a daily headache — they bounce back from email inboxes, take forever to upload to government portals, and eat up storage on your phone. FreePDF's Compress PDF tool shrinks your document's file size dramatically while keeping the text sharp and the images clear, all without sending your file to any server.
Compression is especially valuable for scanned documents, image-heavy reports and presentations, where the original file can be many megabytes. With three quality levels to choose from, you stay in control of the balance between the smallest possible size and the best possible quality.
Unlike most online services, FreePDF never uploads your documents. The entire Compress PDF process happens inside your own browser using your device’s processor. Your files are not stored, copied, or seen by anyone — which is why FreePDF is safe to use for confidential contracts, medical records, financial statements and other sensitive material. When you close the tab, nothing remains on any server because nothing was ever sent to one.
If your PDF is mostly scanned images, the 'More' setting usually gives the biggest savings. For documents that are mostly text, 'Recommended' keeps everything crisp while still cutting the size. Always open the compressed file once to check it looks right before sending it on.
It depends on the content. Scanned or image-heavy PDFs often shrink by 50-80%, while text-only files see smaller reductions because they are already compact.
If your PDF already had real text, our standard compression keeps it selectable. Heavily compressed scans are treated as images.
Yes. Your document is never uploaded — everything happens locally, which makes this ideal for legal, medical and financial paperwork.
Files that are already optimised, or that contain only text, have little left to compress. Try the 'More' level, or use PDF to Image and back for stubborn scans.
Shrink PDF file size while keeping good quality. Free PDF compressor with low/medium/high levels, right in your browser.
100% free · no sign-up · files never leave your device · works on mobile.